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Hood won't fit 240Z fresh paint.


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Ok so I think I really screwed up here but thought I would ask anyway ūüėĒ.¬† I have a 71 series 1 240z 12/70.¬† I painted it myself for the first time painting any car and it came out great, I spent countless hours on¬†youtube and calling around for advice on what to do and what not to do what to use and what not to use, order of things to do it in. But¬†this is something that I missed and wish I would have read it or done before I painted the car. ALIGN ALL THE PANELS FIRST then paint the car. I did it the opposite and now I think I'm screwed. The hood won't align.

 

After the car was painted I aligned the doors to the quarters and they are not perfect but decent, I then aligned the fenders to the doors with the same result, mounted the cowl panel and inspection lids, lastly I installed the hood. I should also mention that this is not the correct hood for the car this hood came off a early 260Z. I remember spending countless hours trying to get the sheetmetal straight on this hood as it was a bit warped but overall the actual framing of the hood was straight and original. Here is another thing, the hood that came off my car was damaged I believe it was hit slightly in the front,  I remember having to pull out my radiator support slightly with a come-along attached to a tree, I did not look totalled but you could tell there was a small collision that had occurred. 

 

So my new painted hood won't align correctly. It's either too high in the front and sits above the fender extension buckets or if adjusted down in the front it sits like a 1" too high in the rear near the cowl panel. Some times it hit the bolts on the side gaps when trying to close. I have loosed the brackets that mount to the body and literally spent 8 hours trying to find a good combination that I can live with as far as an adjustment and it's always off, its really frustrating and depressing. I have loosened the fenders and the headlight buckets to try to move them around but they don't really move much and I'm being careful not to mess up the paint...i have even taken out my grinder and grinded down a 1/2" of the hood inner lip that was contacting the fender "wish i wouldn't have done that" but its just the lip and can be touched up. Still it won't close, I have the latch completely off, just trying to get the hood to lay closed on its own.

 

I read somewhere that sometimes the hoods are different and may not fit right from different years. I have another 240z a 73 that has its correct hood. I also have another set of hood hinges and twist bars off a 280z. Wonder if I should try swapping stuff to see if it fits better and if my hood is the problem. But kind of leaning towards the unibody being slightly tweaked. Damn this sucks. I learned a big lesson here. I can push down in the front of the hood and the hinges will flex down and then spring back when letting go, wonder of that is normal or if my spring hinges are messed up.

 

Doesn't look good for this situation but still hoping for some advice if there is anything else I could try.

 

Thanks 

 

 

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if you can get it low enough at the front but its too high at the bulkhead, the height can be adjusted by screwing in the catch bolt in the bonnet. 

if that doesnt make any difference, check if the bonnet is resting on the rad core support at the front. if it is, you'll have to take the bumper off z loosen all the wing bolts and raise it a bit and start again. 

 

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Post pics, we need to see what you are seeing, it does sound like the unibody and or hood are not in their proper shape.

I would try to get the hood sitting flush with cowl and fenders and then start working on the hinges, there's lots of tweaking that can be done to the hinges and because some of these hinges are quite worn you may have to enlarge to mounting holes so the hinge unit can sit farther down than normally.

Also the 8 hex head screws that hold the fender on in the gap between the fender and hood are not a standard M6x1mm, The head is not as tall/thick as the rest of the M6x1mm screws and there is only one thin washer with no lock washer.

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This helped me align my hood:

 

https://www.classiczcars.com/articles/body-paint/hood-alignment-primer-r59/

 

 

https://www.classiczcars.com/forums/topic/3702-hood-alignment/

 

 

Also, search the body sections of Hybridz and ClassicZcar for a member named "EScanlon".  He is the go-to body panel/hood alignment guy.

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On 10/8/2021 at 2:00 PM, grannyknot said:

Post pics, we need to see what you are seeing, it does sound like the unibody and or hood are not in their proper shape.

I would try to get the hood sitting flush with cowl and fenders and then start working on the hinges, there's lots of tweaking that can be done to the hinges and because some of these hinges are quite worn you may have to enlarge to mounting holes so the hinge unit can sit farther down than normally.

Also the 8 hex head screws that hold the fender on in the gap between the fender and hood are not a standard M6x1mm, The head is not as tall/thick as the rest of the M6x1mm screws and there is only one thin washer with no lock washer.

Hmm well that could be something right there also. I have full size head stainless bolts with a lock washer and regular washer. However I did remove all of those just to see if the hood would sit flat and it still didn't lay right. Almost like it's a teeter totter in the middle.  It's not that drastic but definitely cant get it right. Going to take some photos and try the advice given.

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On 10/8/2021 at 12:54 PM, jonbill said:

if you can get it low enough at the front but its too high at the bulkhead, the height can be adjusted by screwing in the catch bolt in the bonnet. 

if that doesnt make any difference, check if the bonnet is resting on the rad core support at the front. if it is, you'll have to take the bumper off z loosen all the wing bolts and raise it a bit and start again. 

 

The hood sometime hits the front grill top when opening and closing. Got it pretty low in the front. What catch bolt in the hood are you referring to? Not sure I follow. 

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10 hours ago, jonbill said:

This thing. It can  be screwed in and out a bit to adjust height. 

(photo borrowed from jdmcarparts.com)

30-J4105-Datsun-240Z-Hood-Latch-NOS-3_grande.png.d966e2ab2bda4cab4e3685db41c35033.png

Oh right! Well unfortunately I have that entire unit removed just to get the hood to sit flat first before adding the pin unit.

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5 star raising,

    The best way to solve your problem is to post pics of your hood -pics of hood rear gap, left and right hood side gap, hood front edge

compared to both L and R headlight covers and hood height (frnt ,sides and back).   Leave the hood catch off till you fix hood alignment 

first.   Always do one correction at a time then analysis the results.   Take the pics, it will make it easier to solve your problem.

                                                                                                                                                       Toolman

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